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What happens structurally when a carboxylic acid is dissolved in aqueous base? What about an amine in aqueous acid? Draw the reactions that happen, showing all structures.
Tell how infrared spectrometry can be used to differentiate the following compounds. In each case, indicated the signifcant IR bands that will be observed and their approximate wave numbers.
Draw all of the resonance forms of 4-nitrobenzaldehyde which contribute to the enhanced electrophilicity of the aldehyde carbon relative to benzaldehyde
Draw all of the products of the second propagation step in the free-radical bromination of 2,3-dimethylbutane including inorganic
What is the ionization constant of an acid if the hydronium ion concentration of a 0.500 M solution is 1.70 x 10-4 M
Sodium (Na) metal undergoes a chemical reaction with chlorine (Cl) gas to yield sodium chloride, or common table salt. If 3.00 g of sodium reacts with 4.62 g of chlorine, 7.62 g of sodium chloride is formed and 53.7 kJ of heat is released.
Precision can be judged by examining the average of the deviations from the average value for that data set. Calculate the average value of the absolute deviations of each measurement from the average for the first set.
hydrogen gas has a henrys constant of 7.8 x 10-4 molkg . bar 25 degrees celcius when dissolving in water. if the
Assume that the heat required for the vaporization of the alcohol comes only from the aluminum block and that the alcohol vaporizes at 25.
acid is dissolved in water to produce a 1.51 M solution. The pH of the resulting solution is 2.52. Calculate the Ka for the acid.
A gaseous mixture consisting of 0.513 grams of H2 and 16.1 grams of N2 occupies 10.0 liters at 20.0 degrees C. Calculate the partial pressure of H2 and N2 in the mixture in units of atmosphere.
Compute the amount of heat liberated when 6.07 g of n-octane is burned completely with excess oxygen to form carbon dioxide and liquid water.
The binary hydrogen compounds of the Group 4A elements and their boiling points are: CH4, -162 deg C; SiH4, -112 deg C; GeH4, -88 deg C; and SnH4, -52 deg C. Explain the increase in boiling points from CH4 to SnH4.
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